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Malleable Iron Technical Parameter

Malleable Iron Technical Parameterjizhong666@gmail.com2025-08-26T03:17:49+00:00

technical

BRITISH SRANDARD THREADS(BS21:1985)

BRITISH SRANDARD THREADS(BS21:1985)

Nominal Bore of Pipe	Pipe Approximate Outside Diametr of Black Pipe	Pitch	Depth of Thread	Diameter at Gauge Plane(Gauge Dia)	Distance of Gauge Diameter form End(Gauge Length)	Length of Useful Thread
	A	P	h	B	F	E
1/8″	0.400	0.03571	0.0229	0.383	0.1560	0.2545
1/4″	0.538	0.05263	0.0337	0.518	0.2367	0.3814
3/8″	0.676	0.05263	0.0337	0.656	0.2500	0.3947
1/2″	0.847	0.07143	0.0457	0.825	0.3241	0.5178
3/4″	1.063	0.07143	0.0457	1.041	0.3750	0.5714
1″	1.336	0.09091	0.0582	1.309	0.4091	0.6591
1 1/4	1.677	0.09091	0.0582	1.650	0.5000	0.7500
1 1/2″	1.909	0.09091	0.0582	1.882	0.5000	0.7500
2″	2.381	0.09091	0.0582	2.347	0.6250	0.9204
2 1/2″	2.996	0.09091	0.0582	2.960	0.6875	1.0511
3″	3.499	0.09091	0.0582	3.460	0.8125	1.1761
3 1/2″	3.991	0.09091	0.0582	3.950	0.8750	1.2368
4″	4.494	0.09091	0.0582	4.450	1.0000	1.4091
5″	5.498	0.09091	0.0582	5.450	1.1250	1.5795
6″	6.501	0.09091	0.0582	6.450	1.1250	1.5795

AMERICAN STANDARD THREADS(ANSI/ASMEBI 20.1:1983)

AMERICAN STANDARD THREADS(ANSI/ASMEBI 20.1:1983)

Straight Pipe Threads.the pitch,angle,and depth of thread are the same as the corresponding dimensions of the taper pipe threads.

Nominal Bore of Pipe	Pipe Approximate Outside Diametr of Black Pipe	Pitch	Depth of Thread	Diameter at Gauge Plane(Gauge Dia)	Distance of Gauge Diameter form End(Gauge Length)	Length of Useful Thread	Column 8
	D	n	P	L1	E1	L2	H
1/8″	0.405	0.03704	0.03704	0.1615	0.37360	0.2639	0.02963
1/4″	0.540	0.05556	0.05556	0.2278	0.49163	0.2367	0.04444
3/8″	0.675	0.05556	0.05556	0.240	0.62701	0.4018	0.04444
1/2″	0.840	0.07143	0.07143	0.320	0.77843	0.4078	0.05714
3/4″	1.050	0.07143	0.07143	0.339	0.9887	0.5337	0.05714
1″	1.315	0.08696	0.08696	0.400	1.23863	0.5457	0.06957
1 1/4	1.660	0.08696	0.08696	0.420	1.58338	0.6828	0.06957
1 1/2″	1.900	0.08696	0.08696	0.420	1.82234	0.7068	0.06957
2″	2.875	0.08696	0.08696	0.436	2.29627	0.7235	0.06957
2 1/2″	2.996	0.12500	0.12500	0.682	2.76216	0.7565	1.10000
3″	3.500	0.12500	0.12500	0.766	3.38850	1.2000	1.10000
3 1/2″	4.000	0.12500	0.12500	0.821	3.88881	1.2500	1.10000
4″	4.500	0.12500	0.12500	0.844	4.38712	1.3000	1.10000
5″	5.563	0.12500	0.12500	0.937	5.44929	1.4063	1.10000
6″	6.625	0.12500	0.12500	0.958	6.50597	1.5125	1.10000

DIN STANDARD THREADS(DIN:2999)

DIN STANDARD THREADS(DIN:2999)

Nominal Bore of Pipe	Pipe Approximate Outside Diametr of Black Pipe	Pitch	Depth of Thread	Diameter at Gauge Plane(Gauge Dia)	Distance of Gauge Diameter form End(Gauge Length)	Length of Useful Thread
	A	P	h	B	F	E
1/8″	0.400	0.03571	0.0229	0.383	0.1560	0.2545
1/4″	0.538	0.05263	0.0337	0.518	0.2367	0.3814
3/8″	0.676	0.05263	0.0337	0.656	0.2500	0.3947
1/2″	0.847	0.07143	0.0457	0.825	0.3241	0.5178
3/4″	1.063	0.07143	0.0457	1.041	0.3750	0.5714
1″	1.336	0.09091	0.0582	1.309	0.4091	0.6591
1 1/4	1.677	0.09091	0.0582	1.650	0.5000	0.7500
1 1/2″	1.909	0.09091	0.0582	1.882	0.5000	0.7500
2″	2.381	0.09091	0.0582	2.347	0.6250	0.9204
2 1/2″	2.996	0.09091	0.0582	2.960	0.6875	1.0511
3″	3.499	0.09091	0.0582	3.460	0.8125	1.1761
3 1/2″	3.991	0.09091	0.0582	3.950	0.8750	1.2368
4″	4.494	0.09091	0.0582	4.450	1.0000	1.4091
5″	5.498	0.09091	0.0582	5.450	1.1250	1.5795
6″	6.501	0.09091	0.0582	6.450	1.1250	1.5795

British Standard	American Standard	DIN Standard
Materials:ISO 5922	Materials:ANSI/ASME/A197-79	Materials:DIN1692
Dimensions:ISO49	Dimensions:ANSI/ASME B16.3-85	Dimensions:DIN 2950
Threads:ISO7/1	Threads:ANSI/ASME B1.20.1	Threads:DIN 2999

Physical Properties:
Mechanical Properties	Tensile Strength≥33kg/mm2
Mechanical Properties	Elongation≥8%
Mechanical Properties	Hardness＜HB150
Hydraulic Test	Test Pressure:25kg/cm2
Hydraulic Test	Working Pressure:16kg/cm2

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